Machine for making complete tea bags for infusion in a liquid in which the infusable product is contained in a filter bag made of heat-sealed, porous material
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United States of America Patent
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Feb 16, 1999
Grant Date -
N/A
app pub date -
Nov 18, 1996
filing date -
Dec 7, 1995
priority date (Note) -
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Abstract
A machine and process for making complete tea bags comprising a filter bag and thread for holding the filter bag. The machine comprises a continuously turning wheel, whose lateral surface has pins which can move from a rest position, where they are retracted into the lateral surface, to a working position where they protrude from the wheel; the wheel assembles a strip of porous material with the thread, with a pickup tag and with the infusable product in such a way as to form tea bags where the thread is arranged in a closed loop inside the filter bag, together with the infusable product, and is attached to the edges of the filter bag to form a particularly resistant fastening during infusion.
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